You should tell her. If you haven't got communication, you haven't got a real relationship. Chances are, she's stressed or distracted.
What should I do if I feel unappreciated by my girlfriend?
I swear if I hear another man complain. Look you don't do what you do for appreciation. Don't get me wrong it would be good to be acknowledged once in awhile. But it's never their, so get over it. Focus on the little things.